Banking system maintenance at night, unable to operate, avoid this time, try to deal with it during the day;

2.

CCB's credit card needs to enter the ID number and mobile phone number to bind WeChat, and then use the mobile phone to check the dynamic password for identity verification, so it may be that the information input is wrong, or the provided mobile phone number is inconsistent with the CCB system registration, which leads to the failure to complete the verification;